Arizona Department of Water Resources

Politicians and water officials say the plan could devastate Arizona's water supply, and pushed the federal government to adopt a counterproposal from the three Lower Basin states.

An ongoing deadlock between the seven states that rely on the Colorado River may have dire consequences for Arizona.

Colorado River states appear to be coalescing around the early makings of a new plan to share water in a way that accounts for climate change.

The U.S. Supreme Court ruled against the Navajo Nation Thursday in a landmark decision about the tribe’s rights to the water in the Colorado River. KNAU’s Melissa Sevigny reports.

A new round of negotiations about sharing water from the Colorado River is set to kick off next week.

The director of the Arizona Department of Water Resources has designated parts of Mohave County off limits to new irrigation amid dwindling groundwater levels.

The U.S. Bureau of Reclamation has declared a shortage on the Colorado River that will take effect at the start of next year. KNAU’s Melissa Sevigny…

Arizona water regulators have rejected an application by an electric company to use groundwater to cool the nuclear power plant west of Phoenix because…

Arizonans celebrated the completion of their Drought Contingency Plan yesterday, passed by the state legislature just hours before a deadline set by the…